Today’s EO exploitation platforms are limited to the processing functionalities and datasets they provide, and there is no single platform that provides all datasets of interest. Thus, it is crucial to enable cross-platform (federated) analytics to make EO technology easily accessible to everyone. We envision AgoraEO, an EO ecosystem for sharing, finding, composing, and executing EO assets, such as datasets, algorithms, and tools. Making AgoraEO a reality is challenging for several reasons, the main ones being that the ecosystem must provide interactive response times and operate seamlessly over multiple exploitation platforms. In this paper, we discuss the different challenges that AgoraEO poses as well as our ideas to tackle them. We believe that having an open, unified EO ecosystem would foster innovation and boost EO data literacy for the entire population.